While a majority of jobs lost during the downturn were in the middle range of wages, a majority of those added during the recovery have been low paying, according to a new report from the National Employment Law Project.

The disappearance of midwage, midskill jobs is part of a longer-term trend that some refer to as a hollowing out of the work force, though it has probably been accelerated by government layoffs.

“The overarching message here is we don’t just have a jobs deficit; we have a ‘good jobs’ deficit,” said Annette Bernhardt, the report’s author and a policy co-director at the National Employment Law Project, a liberal research and advocacy group.

The report looked at 366 occupations tracked by the Labor Department and clumped them into three equal groups by wage, with each representing a third of American employment in 2008. The middle third – occupations in fields like construction, manufacturing and information, with median hourly wages of $13.84 to $21.13 – accounted for 60 percent of job losses from the beginning of 2008 to early 2010.

The occupations with the fastest growth were retail sales (at a median wage of $10.97 an hour) and food preparation workers ($9.04 an hour). Each category has grown by more than 300,000 workers since June 2009.

Some of these new, lower-paying jobs are being taken by people just entering the labor force, like recent high school and college graduates. Many, though, are being filled by older workers who lost more lucrative jobs in the recession and were forced to take something to scrape by.